Lao villagers are stranded on a roof of a house after they evacuated floodwaters after the Xe Pian Xe Nam Noy dam collapsed in a village near Attapeu province, Laos, 24 July 2018. / EPA

SK Engineering and Construction (SK E&C) said Tuesday that it has formed a crisis management team to respond to a deadly flood in Laos that affected a dam it built in the country.The company said its President Ahn Jae-hyun and senior company officials have left for the Southeast Asian country to figure out the scope of the damage caused by the flood, which occurred late Monday, and to support rescue operations there.The builder said huge amounts of water flooded over the Xepian-Xe Nam Noy hydropower plant dam in San Sai district of Attapeu province in the southeast of the country, sweeping away nearby villages and displacing around 6,600 people. Hundreds of people are reported missing.Although initial media reports said one of the dams under construction collapsed, the company said it is checking whether the dam actually failed or if water swept over it.An official from the company said the area had been hit by heavy rainfall three times greater than normal."The overflow of water went downstream, which had already been flooded, causing more damage," he said.

Lao villagers are stranded on a roof of a house after they evacuated floodwaters after the Xe Pian Xe Nam Noy dam collapsed in a village near Attapeu province, Laos, 24 July 2018. / EPA

The company is supporting the Laotian government's rescue operations by bringing in helicopters from Thailand to help rescue stranded people. Villagers in nearby areas have been evacuated, the company said, adding that the affected area is surrounded by dense forest where communication isn't easy, complicating rescue efforts.The dam was built by a joint venture comprising SK E&C and Laos and Thai partners beginning in 2013 and was expected to go into full operation next year. (Yonhap)

This screen grab taken on handout video footage from ABC Laos on July 24, 2018 shows an aerial view of the flooded plains in Attapeu province after a dam collapsed the day before. / AFP